Second, Ze Medjap Abel, Yaouba Aoudou, and Fuh Ngwa Yvonne. “A Comparative Study on Different Methods of Inoculating Cowpea Using Microbial Fertilisers”. Discoveries in Agriculture and Food Sciences 10, no. 4 (April 19, 2023): 39–46. Accessed May 4, 2026. https://scholarpublishing.org/journals/index.php/DAFS/article/view/996.